India tunnel disaster at a Himalayan hydropower project leaves 10 dead and 17 missing

At least 10 people were killed and 17 others remain missing after a suspected gas explosion triggered a collapse inside an under-construction tunnel at a hydropower project in India’s northeaster Himalayan state of Sikkim, near the Chinese border, officials said on Tuesday. The blast ripped through the tunnel on Monday (local time) at Samardung village, about 40km from the state capital, Gangtok, where multiple workers were carrying out construction work on the 500-megawatt Teesta hydroelectric project, Anupama Tamling, a civil official in the area, told reporters. Survivors who managed to escape told authorities they heard a loud explosion before debris came crashing through the tunnel, trapping dozens inside, she said. As news of the accident spread, six officials from the state-owned National Hydroelectric Power Corporation (NHPC), which is building the project, entered the tunnel to assist in rescue efforts but became trapped themselves, officials said. “We have recovered 10 bodies so far and 17 others are feared trapped,” local police chief Sonam Dolma told reporters. Rescue teams, including the National Disaster Response Force (NDRF), have been struggling to reach those trapped because of hazardous conditions inside the tunnel, where toxic gases have accumulated. “We found toxic gases such as methane, carbon monoxide and hydrogen sulphide inside the tunnel,” NDRF official Nitin Kumar told reporters at the scene. He said rescuers were using specialised breathing equipment as they tried to search for survivors amid dangerous air conditions.